Mountain Weather Forecast
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Weather Synopsis for Sunday & Monday
More snow is on the way for our mountains as a low pressure system drops south along the British Columbia coast and teams up with cool NW flow. Good orographics will enhance snow showers for the Olymipcs, Washington Cascades and Mt. Hood all day today, with much heavier snowfall totals near the Cascade crest. A Puget Sound Convergence zone will likely form later this afternoon and evening adding additional snowfall to the central Cascades.
Strong surface high pressure dropping south in British Columbia later today will drive arctic air through the Fraser River Valley overnight. Expect drier conditions to develop over the north Cascades later tonight as much colder air filters in. Showers should become lighter late tonight into tomorrow morning, but a new low pressure system will impact the central Oregon coast on Monday. While this does not look as wet as the previous system, light snow should extend north to the central Cascades during the afternoon hours.
Weather Forecast
Hurricane Ridge
| Sunday | Moderate snow showers becoming light to moderate in the afternoon. Strong winds. |
Mt. Baker
| Sunday | Moderate snow showers decreasing late in the afternoon. Winds decreasing in the afternoon. |
Washington Pass and Leavenworth
| Sunday | Light to occasionally moderate snow showers, heaviest near the Cascade crest. |
Stevens and Snoqualmie Pass
| Sunday | Moderate to occasionally heavy snow showers. Puget Sound Convergence Zone this afternoon will produce heavier snow showers. Variable wind in the Passes becoming strong west winds in the afternoon. |
Mt. Rainier, Crystal and White Pass
| Sunday | Moderate snow showers, heaviest Paradise and White Pass. Strong winds. |
Mt. Hood
| Sunday | Moderate to heavy rain and snow showers. Winds increasing and becoming very windy this afternoon. Cooling trend late. |
Issued: 7:11 AM PST Sunday, January 12, 2020
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| Sunday Morning | Snow Level | 2500' | 1500' | 1000' | 1500' | 2000' | 2000' | 2000' | 3000' |
| Sunday Afternoon | Snow Level | 1500' | 1500' | 1000' | 1500' | 1000' | 1000' | 1500' | 2000' |
| Sunday Evening | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 500' |
| Sunday Night | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Monday Morning | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 0' |
| Monday Afternoon | Snow Level | 0' | 0' | 0' | 0' | 0' | 0' | 0' | 1000' |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2500' |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Evening |
Snow Level 0' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Evening |
Snow Level 0' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Washington Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 1000' |
| Sunday Afternoon |
Snow Level 1000' |
| Sunday Evening |
Snow Level 0' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Leavenworth | Elevation |
|---|---|
| Sunday Morning |
Snow Level 1500' |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Evening |
Snow Level 0' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Stevens Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 1000' |
| Sunday Evening |
Snow Level 0' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 1000' |
| Sunday Evening |
Snow Level 0' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Sunday Morning |
Snow Level 2000' |
| Sunday Afternoon |
Snow Level 1500' |
| Sunday Evening |
Snow Level 0' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 0' |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning |
Snow Level 3000' |
| Sunday Afternoon |
Snow Level 2000' |
| Sunday Evening |
Snow Level 500' |
| Sunday Night |
Snow Level 0' |
| Monday Morning |
Snow Level 0' |
| Monday Afternoon |
Snow Level 1000' |
* Easterly flow in the Cascade Passes can cause locally lower Snow or Freezing levels than areas further west.
Freezing Level is when no precipitation is forecast.
Precipitation Forecast
| Sunday | Sunday Night | Monday | |
|---|---|---|---|
| 4 am - 4 pm | 4 pm - 4 am | 4 am - 4 pm | |
| Hurricane Ridge | 0.50 - 0.75 | LT 0.25 | LT 0.10 |
| Mt Baker Ski Area | 0.75 - 1.00 | 0.25 | LT 0.10 |
| Stevens Pass | 0.75 - 1.00 | 0.25 - 0.50 | LT 0.10 |
| Snoqualmie Pass | 1.00 | 0.50 - 0.75 | LT 0.25 |
| Crystal Mt | 0.50 | 0.25 | LT 0.10 |
| Paradise | 1.00 - 1.50 | 0.50 - 0.75 | LT 0.25 |
| White Pass | 1.00 | 0.25 - 0.50 | LT 0.25 |
| Washington Pass | 0.25 | LT 0.10 | LT 0.10 |
| Mission Ridge | LT 0.10 | LT 0.10 | LT 0.10 |
| Mt Hood Meadows | 1.50 | 0.75 - 1.00 | 0.50 |
| Timberline | 1.50 - 2.00 | 1.00 | 0.50 |
| Leavenworth | LT 0.10 | LT 0.10 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Sunday | 0.50 - 0.75 |
| Sunday Night | LT 0.25 |
| Monday | LT 0.10 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Sunday | 0.75 - 1.00 |
| Sunday Night | 0.25 |
| Monday | LT 0.10 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Sunday | 0.75 - 1.00 |
| Sunday Night | 0.25 - 0.50 |
| Monday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Sunday | 1.00 |
| Sunday Night | 0.50 - 0.75 |
| Monday | LT 0.25 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Sunday | 0.50 |
| Sunday Night | 0.25 |
| Monday | LT 0.10 |
| Paradise | Precipitation Forecast |
|---|---|
| Sunday | 1.00 - 1.50 |
| Sunday Night | 0.50 - 0.75 |
| Monday | LT 0.25 |
| White Pass | Precipitation Forecast |
|---|---|
| Sunday | 1.00 |
| Sunday Night | 0.25 - 0.50 |
| Monday | LT 0.25 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Sunday | 0.25 |
| Sunday Night | LT 0.10 |
| Monday | LT 0.10 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | LT 0.10 |
| Monday | LT 0.10 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Sunday | 1.50 |
| Sunday Night | 0.75 - 1.00 |
| Monday | 0.50 |
| Timberline | Precipitation Forecast |
|---|---|
| Sunday | 1.50 - 2.00 |
| Sunday Night | 1.00 |
| Monday | 0.50 |
| Leavenworth | Precipitation Forecast |
|---|---|
| Sunday | LT 0.10 |
| Sunday Night | LT 0.10 |
| Monday | LT 0.10 |
LT = less than; WE or Water equivalent is the liquid water equivalent of melted snow in hundredths of inches. As a rough approximation 1 inch of snow = about .10 inches WE, or 10 inches of snow = about 1 inch WE.
Issued: 7:11 AM PST Sunday, January 12, 2020
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Morning | WSW 20 - 30 | S 15 - 25 | S 10 - 20 | SW 10 - 20 | W 20 - 30 |
| Sunday Afternoon | SW 20 - 30 | SW 10 - 20 | WSW 15 - 25 | W 20 - 30 | W 30 - 40 |
| Sunday Evening | W 5 - 15 | SW 5 - 15 | WSW 20 - 30 | W 20 - 30 | W 30 - 40 |
| Sunday Night | SW 0 - 10 | NE 5 - 15 | W 15 - 25 | W 15 - 25 | W 30 - 40 |
| Monday Morning | SW 0 - 10 | E 5 - 15 | W 10 - 20 | W 10 - 20 | W 25 - 35 |
| Monday Afternoon | VAR 0 - 10 | E 5 - 15 | W 10 - 20 | W 10 - 20 | W 15 - 25 |
| Hurricane Ridge | Elevation |
|---|---|
| Sunday Morning | WSW 20 - 30 |
| Sunday Afternoon | SW 20 - 30 |
| Sunday Evening | W 5 - 15 |
| Sunday Night | SW 0 - 10 |
| Monday Morning | SW 0 - 10 |
| Monday Afternoon | VAR 0 - 10 |
| Mt. Baker | Elevation |
|---|---|
| Sunday Morning | S 15 - 25 |
| Sunday Afternoon | SW 10 - 20 |
| Sunday Evening | SW 5 - 15 |
| Sunday Night | NE 5 - 15 |
| Monday Morning | E 5 - 15 |
| Monday Afternoon | E 5 - 15 |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Sunday Morning | S 10 - 20 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Evening | WSW 20 - 30 |
| Sunday Night | W 15 - 25 |
| Monday Morning | W 10 - 20 |
| Monday Afternoon | W 10 - 20 |
| Mt. Rainier | Elevation |
|---|---|
| Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | W 20 - 30 |
| Sunday Evening | W 20 - 30 |
| Sunday Night | W 15 - 25 |
| Monday Morning | W 10 - 20 |
| Monday Afternoon | W 10 - 20 |
| Mt. Hood | Elevation |
|---|---|
| Sunday Morning | W 20 - 30 |
| Sunday Afternoon | W 30 - 40 |
| Sunday Evening | W 30 - 40 |
| Sunday Night | W 30 - 40 |
| Monday Morning | W 25 - 35 |
| Monday Afternoon | W 15 - 25 |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Sunday Morning | WSW 20 - 30 |
| Sunday Afternoon | SW 20 - 30 |
| Sunday Evening | W 5 - 15 |
| Sunday Night | SW 0 - 10 |
| Monday Morning | SW 0 - 10 |
| Monday Afternoon | VAR 0 - 10 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | S 15 - 25 |
| Sunday Afternoon | SW 10 - 20 |
| Sunday Evening | SW 5 - 15 |
| Sunday Night | NE 5 - 15 |
| Monday Morning | E 5 - 15 |
| Monday Afternoon | E 5 - 15 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | S 10 - 20 |
| Sunday Afternoon | WSW 15 - 25 |
| Sunday Evening | WSW 20 - 30 |
| Sunday Night | W 15 - 25 |
| Monday Morning | W 10 - 20 |
| Monday Afternoon | W 10 - 20 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | SW 10 - 20 |
| Sunday Afternoon | W 20 - 30 |
| Sunday Evening | W 20 - 30 |
| Sunday Night | W 15 - 25 |
| Monday Morning | W 10 - 20 |
| Monday Afternoon | W 10 - 20 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | W 20 - 30 |
| Sunday Afternoon | W 30 - 40 |
| Sunday Evening | W 30 - 40 |
| Sunday Night | W 30 - 40 |
| Monday Morning | W 25 - 35 |
| Monday Afternoon | W 15 - 25 |
Directions above indicate the direction the wind blows from on the 16-point cardinal scale. These winds indicate "free" winds, or those winds in the atmosphere not influenced by terrain. Topographical effects may produce greater or lower wind speeds in certain locations as well as significant variations in direction.
Free Winds at 9000' (mph)
| Mt. Baker | Washington Pass | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Sunday Morning | SW 25 - 35 | SW 20 - 30 | WSW 35 - 45 | WSW 35 - 45 | W 40 - 50 |
| Sunday Afternoon | SW 15 - 25 | SW 20 - 30 | WSW 30 - 40 | W 40 - 50 | W 60 - 70 |
| Sunday Evening | SW 15 - 25 | WSW 15 - 25 | W 20 - 30 | W 30 - 40 | W 60 - 70 |
| Sunday Night | W 15 - 25 | WSW 15 - 25 | WNW 25 - 35 | W 30 - 40 | W 60 - 70 |
| Monday Morning | WSW 10 - 20 | WSW 10 - 20 | W 25 - 35 | W 30 - 40 | W 50 - 60 |
| Monday Afternoon | SW 10 - 20 | WSW 10 - 20 | W 35 - 45 | W 25 - 35 | W 40 - 50 |
| Mt. Baker | Direction - Speed |
|---|---|
| Sunday Morning | SW 25 - 35 |
| Sunday Afternoon | SW 15 - 25 |
| Sunday Evening | SW 15 - 25 |
| Sunday Night | W 15 - 25 |
| Monday Morning | WSW 10 - 20 |
| Monday Afternoon | SW 10 - 20 |
| Washington Pass | Direction - Speed |
|---|---|
| Sunday Morning | SW 20 - 30 |
| Sunday Afternoon | SW 20 - 30 |
| Sunday Evening | WSW 15 - 25 |
| Sunday Night | WSW 15 - 25 |
| Monday Morning | WSW 10 - 20 |
| Monday Afternoon | WSW 10 - 20 |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Sunday Morning | WSW 35 - 45 |
| Sunday Afternoon | WSW 30 - 40 |
| Sunday Evening | W 20 - 30 |
| Sunday Night | WNW 25 - 35 |
| Monday Morning | W 25 - 35 |
| Monday Afternoon | W 35 - 45 |
| Mt. Rainier | Direction - Speed |
|---|---|
| Sunday Morning | WSW 35 - 45 |
| Sunday Afternoon | W 40 - 50 |
| Sunday Evening | W 30 - 40 |
| Sunday Night | W 30 - 40 |
| Monday Morning | W 30 - 40 |
| Monday Afternoon | W 25 - 35 |
| Mt. Hood | Direction - Speed |
|---|---|
| Sunday Morning | W 40 - 50 |
| Sunday Afternoon | W 60 - 70 |
| Sunday Evening | W 60 - 70 |
| Sunday Night | W 60 - 70 |
| Monday Morning | W 50 - 60 |
| Monday Afternoon | W 40 - 50 |
Directions above indicate the direction the wind blows from on the 16-point cardinal scale. These winds indicate "free" winds, or those winds in the atmosphere not influenced by terrain. Topographical effects may produce greater or lower wind speeds in certain locations as well as significant variations in direction.
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k
Previous forecast from Jan. 11, 2020
The NWAC program is administered by the USDA-Forest Service and operates from the National Weather Service Forecast Office in Seattle. NWAC services are made possible by important collaboration and support from a wide variety of federal, state and private cooperators.